The Valdosta Southern Railroad began operating the former Georgia & Florida line in 1954 between Valdosta, Georgia, and Madison, Florida.
The Valdosta Southern was owned by Owens-Illinois, Inc. which operated a paper mill at Clyattville.

The tracks from Clyattville to Madison were abandoned in 1972, leaving the Valdosta Southern as a 10-mile line between Valdosta and Clyattville.

In 1992, the line was sold to Rail Management Corporation, which established the Valdosta Railway to operate it.
In 2005, Rail Management sold all of its assets, including the Valdosta Railway,
to Genesee & Wyoming Inc

In 2001 the Wisconsin Central was purchased by a second Canadian railroad, the Canadian National. Along with the former Illinois Central Railroad, the former Wisconsin Central became part of Canadian Nationals United States holdings and its property integrated into the CN system. At the time of its sale to Canadian National, Wisconsin Central operated over 2,850 miles of track in the Great Lakes region.

Wisconsin Central Map created by Sean Lamb, based on a map in the Wisconsin Central Railroad's 1998 Annual Report.